User`s guide

Section 360−381−S02

5.3.2. FXS Parameters (for 3657-80 12 Channel FXS/DPO Unit)

Figure 9. FXS Parameter Settings

Parameter Possible Choices Description

Channel Selection 1−12 (if in Card 1 slot) Select the channel the parameters will be applied to.

Each channel can be configured individually

13−24 (if in Card 2 slot)

Each channel can be configured individually.

25−30 (if in half-size slot)

Channel Impedance 600 ohms Loop matching impedance

900 ohms

Ring Mode interrupted, burst or contin-

uous

This option is available only if PLARD D3 or D4 is se-

lected.

Channel Type FXS/GS Ground start

FXS/LS Loop start

PLARD/D3 Private line automatic ringdown, D3 signaling format.

PLARD/D4 Private line automatic ringdown, D4 signaling format.

MEGACOM/GS/immediate AT&T Megacom—ground start

MEGACOM/GS/wink

MEGACOM/LS AT&T Megacom—loop start

DPO Dial pulse originate

Forced Busy ON or OFF Select ON to force local channel busy

CGA Immediate Idle or Busy CGA immediate conditioning

CGA Delayed Idle or Busy CGA conditioning after alarm delay

TTLP Level (dBm) −10.0 to +6.0 dBm Transmit TLP level

RTLP Level (dBm) −15.0 to +1.0 dBm Receive TLP level